Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"lon cao dang snippets" » "lon lao dang snippets", "luong cao dang snippets", "toan cao dang snippets", "lon cao dan snippets", "lon cao dung snippets", "lon cao dong snippets", "lon cao dang slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("lon cao dang snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lon cao dang snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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